A former Marine Corps captain with combat experience in Iraq, Hoh had also served in uniform at the Pentagon, and as a civilian in Iraq and at the State Department. By July, he was the senior U.S. civilian in Zabul province, a Taliban hotbed.

But last month, in a move that has sent ripples all the way to the White House, Hoh, 36, became the first U.S. official known to resign in protest over the Afghan war, which he had come to believe simply fueled the insurgency.

“I have lost understanding of and confidence in the strategic purposes of the United States’ presence in Afghanistan,” he wrote Sept. 10 in a four-page letter to the department’s head of personnel. “I have doubts and reservations about our current strategy and planned future strategy, but my resignation is based not upon how we are pursuing this war, but why and to what end.”…

“I’m not some peacenik, pot-smoking hippie who wants everyone to be in love,” Hoh said. Although he said his time in Zabul was the “second-best job I’ve ever had,” his dominant experience is from the Marines, where many of his closest friends still serve.